Since the newest update i am having an issue uploading my simbrief flight plan. I have confirmed my airac on simbrief is current, as well as in the aircraft. (Both match). I have also made sure my nav data center fenix option is updated along with the airac. Not sure what has happened. Also my pilot id is correct both in the aircraft, as well as in the fenix app.
Are you using navigraph? If you are go to your Navigraph Navdata center app, go to msfs installed outside simulator, and there should be a profile for the fenix you can download.
I have stated in my message that the nav data center app options are updated. ALA the airac and fenix installers